`mail.peerlearning.de`

DNSSEC	⚠️ Not signed
A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl1.sedo.com` ⭐ ⚠️ Not in parent delegation
		A	91.195.240.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl2.sedo.com` ⚠️ Not in parent delegation
		A	91.195.241.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
MX	`localhost` ⭐
TXT	`v=spf1 -all`
SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #1

`peerlearning.de`

	DNSSEC	⚠️ Not signed
	A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
	NS	`sl1.sedo.com` ⭐
	NS	`sl2.sedo.com`
	MX	`localhost` ⭐
	TXT	`v=spf1 -all`
	SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #1

Previously MX for

peerlearning.de

Same first word

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mail.firewall-gateway.com

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mail.glass

mail.mil.kg

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mail.gov.bh

mail.no-ip.info

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mail.gov.cl

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mail.123hjemmeside.no

mail.fantasyleague.cc

mail.ufcfan.org

mail.ge

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mail.run

mail.edu.rs

mail.lt

mail.vn

mail.sl

mail.gov.mu

mail.gov.in

mail.pk

mail.uz

mail.clinic

mail.bm

mail.com.pk

mail.hl.cn

mail.nhs.uk

mail.hotmail

mail.gov.om

mail.canon

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mail.caa.li

mail.as

mail.ir

mail.net.ru

mail.cz

mail.gov.ms

mail.so

mail.ind.in

mail.com.in

mail.noip.us

mail.hippy.jp

mail.eating-organic.net

mail.ba.gov.br

mail.com

mail.inf.br

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mail.edu.tw

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DNS History

5 records (4 active, 1 former)

●NSsl1.sedo.com2026-02-16 → 2026-07-12 · 2 obs

● 2026-02-16 07:37:26
● 2026-07-12 21:34:36

●NSsl2.sedo.com2026-02-16 → 2026-07-12 · 2 obs

● 2026-02-16 07:37:26
● 2026-07-12 21:34:36

●MXlocalhost2026-02-16 → 2026-07-12 · 2 obs

● 2026-02-16 07:37:26
● 2026-07-12 21:34:36

○A127.0.0.12015-06-12 → 2015-10-24 · 4 obs

● 2015-06-12 06:56:32
● 2015-10-24 02:40:28
○ 2016-01-01 12:56:10
○ 2026-07-12 21:34:36

●A91.195.241.2322026-02-16 → 2026-07-12 · 3 obs

○ 2016-01-01 12:56:10
● 2026-02-16 07:37:26
● 2026-07-12 21:34:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
peerlearning.de	sl1.sedo.com, sl2.sedo.com	-

✅ Authoritative Response

Server:91.195.241.173

NS records: sl1.sedo.com, sl2.sedo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for peerlearning.de (unsigned zone)

⏱️ Timing

Total: 4441ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.195.241.232`
NS	2	`sl2.sedo.com, sl1.sedo.com`
MX	1	`localhost (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`sl1.sedo.com hostmaster.sedo.de`

Analysis

IP Addresses

mail.peerlearning.de points to a single IP number: 91.195.241.232.

Additional host names — mail.cfplus.de, slea.eu, sheknows.de and two others — share IP numbers with mail.peerlearning.de.

Name Servers

mail.peerlearning.de is delegated to two name servers: sl1.sedo.com and sl2.sedo.com.

mail.peerlearning.de shares its name server setup with other domains, including bunbe.com, rhombus.eu, ns2.crmsoft.eu and two others.

mail.peerlearning.de shares at least some of its name servers with other domains, such as mail.airphones.de.

sl1.sedo.com directs to 91.195.240.173 and sl2.sedo.com directs to 91.195.241.173; each host name points to exactly one IP number.

Mail Servers

mail.peerlearning.de has one mail server: localhost.

mail.peerlearning.de shares the same mail server setup as other domains, including appbank.de, www.dejavutv.com, localhost.frontman.com and two others.

mail.peerlearning.de - robtex.com